In Sare, take the D406 road to Vera and pass Ibartsoroa. After a bend, take the first road on the right. When you reach a farm on the left, take the road on the right that climbs for 850 m. Park before you reach the reservoir (point 225 m). There is a sign for La Rhune on the left.
(S/E) Do not take the path on the right parallel to the road, but the one that climbs up opposite, to the south-east. After a bend at Borde Etxegaraiko, take the stony path that branches off to the right, marked with a yellow cross, heading due west. There are no signposts.
The return journey is via the yellow-marked trail that starts behind the hill on the left.
After 900 m, you will come to a meadow which you must cross, making a loop to the left. Then pass a spring at around 425 m (drinking water). Continue along this wide path heading due west. Cross a small stream in a right-hand bend and continue climbing this stony path to arrive at another meadow.
(1) Find the yellow markings, which you will follow on the way back. Go straight ahead, slightly north-west, following these markings until the next fork on the left (altitude 650 m) (alternative route for the return).
(2) At the fork, go straight ahead. The trail climbs steeply and reaches a new intersection on the right.
(3) Leave the yellow markings that go to the right and head for a gap. Climb straight ahead towards the pass slightly to the left. The climb is steep and ends in a sort of staircase, which has become dangerous due to frequent use and lack of maintenance. Watch your ankles
(4) At the pass, the path veers left, west. Pass to the right of a boundary marker, cross a stream and follow a faint path through the grass, heading west along the border. The path is not easy to see in foggy weather and the GPS track may be useful. Pass to the left of a small rock barrier and head towards the next one. The path winds its way through the middle and continues over flat stones. Pass to the right of a fence and join a track after boundary marker 25.
(5) Pay attention to where the path ends, as you will need to return by the same route. The start is not easy to find, especially in foggy weather.
Continue along the track to the summit.
(6) La Rhune (Larrun) with its railway station. Return by the same route and find the path before the hut.
(5) Leave the track and take the path on the left. Reach the pass and continue along the path until you pass the fork you came to on the way up (altitude 650 m).
(2) Turn right. This path is easier to descend. When you reach a boundary marker, turn left heading east. The path loops around to rejoin the path you took on the way up.
(1) Ignore the route you took on the way up and continue to the right, following the yellow markings. You will soon come to a well-marked path on the right. Leave it and take the grassy path on the left.
(7) Turn left. At the next bend, follow the yellow markings to the left. After about 1 km, continue through the forest. At the exit, continue to the unnamed pass (altitude 348).
(8) Turn left and, after crossing a stream, descend to the right.
(9) Cross the stream, then turn right. The trail joins the Borde Etxegaraiko. Then take the same gravel path you took on the way there until you reach the road (S/E).